- D&C (Dilation and Curettage (D&C))
 
- Dam, Dental (How to Use a Condom)
 
- Dandruff
 
- Dark Vaginal Discharge (Vaginal Discharge)
 
- DCD (Motor Skills Disorder)
 
- de Quervain's Tenosynovitis
 
- Death, Sudden Cardiac (Sudden Cardiac Arrest)
 
- Decompression Syndromes: The Bends
 
- Decrease in Testosterone (Low Testosterone (Low-T))
 
- Deep Vein Thrombophlebitis (Phlebitis)
 
- Deep Vein Thrombosis (Blood Clot in the Legs)
 
- Degenerative Disease of the Brain (Parkinson Disease Dementia)
 
- Dehydration in Adults
 
- Dehydration in Children
 
- Dementia Due to HIV Infection
 
- Dementia in ALS (Lou Gehrig's Disease)
 
- Dementia in Head Injury
 
- Dementia Medication Overview
 
- Dementia Overview
 
- Dementia vs Alzheimers What Is the Difference
 
- Dementia With Lewy Bodies
 
- Dementia, Stroke Related (Stroke-Related Dementia)
 
- Dengue Fever
 
- Dental Abscess
 
- Dental Dam (How to Use a Condom)
 
- Depression Health
 
- Depression Risk in Cancer Patients
 
- Depression Symptoms and Signs
 
- Dermatomes
 
- Dermoid Cyst (Ovarian Cysts)
 
- Dermoid Cyst Removal
 
- Dermoid Cysts in the Brain (Dermoid Cyst Removal)
 
- Dermoid Cysts in the Nasal Sinuses (Dermoid Cyst Removal)
 
- Dermoid Cysts of the Ovary (Dermoid Cyst Removal)
 
- Desquamative Interstitial Pneumonitis (Interstitial Lung Disease)
 
- Developmental Disorder, Pervasive (Asperger Syndrome)
 
- Developmental Dyspraxia (Motor Skills Disorder)
 
- Developmental Motor Delay (Motor Skills Disorder)
 
- Diabetes (Mellitus, Type 1 and Type 2)
 
- Diabetes Blood Sugar Emergencies
 
- Diabetes Emergencies
 
- Diabetes Symptoms and Signs in Men and Women
 
- Diabetes, Type 2 (Type 2 Diabetes)
 
- Diabetic Encephalopathy (Encephalopathy)
 
- Diabetic Eye Disease
 
- Diabetic Foot Care
 
- Diabetic Ketoacidosis
 
- Diabetic Macular Edema (Diabetic Eye Disease)
 
- Diabetic Neuropathy (Neuropathy)
 
- Diabetic Retinopathy (Diabetic Eye Disease)
 
- Diagnosing Erectile Dysfunction
 
- Diagnosis and Treatment of Pancreatic Cancer
 
- Diaper Rash
 
- Diarrhea
 
- Diarrhea and Constipation as Cancer Treatment Side
 
- Diarrhea Drugs (Home Pharmacy)
 
- Diarrhea Is It Food Poisoning or Infection
 
- Diarrhea vs Loose Stool Differences Similarities
 
- Diarrhea, Traveler's (Traveler's Diarrhea)
 
- Diarrheal Shellfish Poisoning (Wilderness: Shellfish Poisoning, Gastrointestinal)
 
- Diastolic Heart Failure (Congestive Heart Failure)
 
- Diet and Crohn's Disease (Diet and Nutrition in Crohn Disease)
 
- Diet and Nutrition in Crohn Disease
 
- Diet for a Person with High Cholesterol
 
- Diet for Seniors (Healthy Lifestyles for Seniors)
 
- Difference Addiction and Substance Abuse Disorder
 
- Difference Between a Cyst and Breast Cancer
 
- Difference Between A Psychopath and A Sociopath
 
- Difference Between Back Pain and Kidney Pain
 
- Difference Between Carcinoid Neuroendocrine Tumors
 
- Difference Between Marburg and Ebola Virus
 
- Difference Between Mucus Plug vs Bloody Show
 
- Difference Between Paresthesia and Dysesthesia
 
- Difference Between Psoriasis and Plaque
 
- Difference Between Rheumatoid Arthritis vs Lupus
 
- Difference Carbon Monoxide Carbon Dioxide Poisonin
 
- Difference Common Hepatic and Common Bile Duct
 
- Difference Rheumatoid Arthritis vs. Fibromyalgia
 
- Differences Between Tuberculosis and COVID 19
 
- Difficile (Clostridium Difficile (C. difficile, C. diff))
 
- Difficulty Swallowing (Dysphagia (Swallowing Problems))
 
- Diffuse Idiopathic Skeletal Hyperostosis (DISH)
 
- Dilated Cardiomyopathy (Cardiomyopathy)
 
- Dilation and Curettage (D&C)
 
- DIP (Interstitial Lung Disease)
 
- Diphtheria
 
- Direct Hospital Admission (Hospital Admissions)
 
- Disc Battery Ingestion (Battery Ingestion)
 
- Discharge, Vaginal (Vaginal Discharge)
 
- Disease, Alzheimer's (Alzheimer's Disease FAQs)
 
- Disease, Chronic Obstructive Pulmonary (Chronic Obstructive Pulmonary Disease (COPD))
 
- Disease, Crohn's (Crohn Disease)
 
- Disease, Liver (Liver)
 
- Disease, Parkinson's (Parkinson's Disease (PD))
 
- Disease, Pelvic Inflammatory (Pelvic Inflammatory Disease)
 
- Disease, Thyroid (Thyroid FAQs)
 
- Disease, Thyroid (Thyroid Problems)
 
- Dislocated Ankle (Ankle Dislocation)
 
- Dislocated Hip
 
- Disorder, Autism (Autism)
 
- Disorders That Disrupt Sleep (Parasomnias)
 
- Disorders, Thyroid (Thyroid FAQs)
 
- Disposing of Medication (Prescription Medicine)
 
- Distal Interphalangeal Arthropathy Arthritis (Psoriatic Arthritis)
 
- Diverticular Disease (Diverticulosis and Diverticulitis)
 
- Diverticular Diverticulitis IBS Irritable Bowel
 
- Diverticulitis vs Ulcerative Colitis UC
 
- Diverticulosis (Diverticulosis and Diverticulitis)
 
- Diverticulosis and Diverticulitis
 
- Diving Tips (Wilderness: Safe Diving and Wilderness Tips)
 
- Dizziness